Related Experiment Video

Updated: Aug 20, 2026

Surface Engineering of Pancreatic Islets with a Heparinized StarPEG Nanocoating
05:35

Surface Engineering of Pancreatic Islets with a Heparinized StarPEG Nanocoating

Published on: June 23, 2018

[Effect of the heparin-lysine complex on the hemostatic and insular systems]

A M Ul'ianov, L A Liapina, V E Pastorova

    Izvestiia Akademii Nauk. Seriia Biologicheskaia
    |November 24, 2004
    PubMed

    More Related Videos

    Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood11:17

    Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood

    Published on: October 12, 2012

    Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery12:27

    Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery

    Published on: August 22, 2016

    Related Concept Videos

    Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

    Anticoagulant Drugs: Low-Molecular-Weight Heparins

    Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
    Extrinsic and Intrinsic Pathways of Hemostasis01:20

    Extrinsic and Intrinsic Pathways of Hemostasis

    Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
    The Extrinsic Pathway
    The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which forms a...
    Introduction to Hemostasis01:05

    Introduction to Hemostasis

    Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
    The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized, and...
    Clot Retraction and Fibrinolysis01:16

    Clot Retraction and Fibrinolysis

    After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
    Formation of the Platelet Plug01:22

    Formation of the Platelet Plug

    The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
    As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
    Local Anesthetics: Pharmacokinetics01:13

    Local Anesthetics: Pharmacokinetics

    The potency and duration of action of local anesthetics (LAs) are determined by their pharmacokinetics. Pharmacokinetics describes how LAs are absorbed, distributed, metabolized, and eliminated from the body. When administered to the vascular tissues, LAs are quickly absorbed and enter the systemic circulation, reducing their localized effects. Adding vasoconstrictors such as epinephrine to LAs reduces their absorption into the systemic circulation, making them clinically effective. The...